Locomotive-furnace



(No Model.)

T. A. BUOKLAND.

LOGOMOTIVE FURNACE.

Patented Feb. 7,1882.

Atteszfi. 14

fnve a $01 ffgz N. PETERS FhoIo-Lllhagnphcr. Washington, D. C.

UNITED rates ATENT OFFICE.

THOMAS A. BUGKLAND, OF ST. LOUIS, MISSOURI.

LOCOMOTIVE-FURNACE.

SPECIFICATION forming part of Letters Patent No. 253,179, dated February7, 1882. Application filed June 6, 1881. (No model.)

To all whom it may concern:

Be it known that I, THOMAS A. BUOKLAND, of St. Louis, Missouri, havemade a new and useful Improvement in Locomotive-Furnaces, of which thefollowing is a full, clear, and exact description, reference being hadto the annexed drawings, making part of this specification, in which-Figure 1 is a view in perspective of alocomotive-furnace having theimprovements, the wall of the furnace being broken away to exhibit theinterior; Fig. 2, avertical longitudinal section of the furnace; andFig. 3, an end elevation of the arch.

The same letters denote the same parts.

The improvement relates to the mode of forming the diaphragrnwithin thefurnace.

A represents a locomotive-furnace of the usual type, having the wall 13,the grate U, the door D, and theash-pitE. The entrances to the boi1erflues are shown at F F.

The diaphragm is substantially an arch, G, composed of a series oftiles, H H H H H H, each tile being made to rest upon the grate U or asuitable support in the vicinity of the grate, orjust above the firewhen the grate is a movable one, and extending thence upward against theside wall of the furnace, and at the upper end turned inward, so thatwhen the various tiles are placed in position a funnelshaped orcontracting archway is formed, the larger end being toward the door D.Toward its farther end the arch is preferably perforated, as shown at g9. Side tilings, I I, and end tilings, J J, are preferably used inconnection with the arch G, and the tilings J are preferably'pcrforatedto admit air to the throat K. The arch G does not extend to the front aof the furnace, the space L, between the arch and furnace-front, beingcovered by a readily-removable plate or tile, M, which extends from thefront a to the arch G, but not fastened to or made part of the arch, itsforward edge simply resting upon the arch, and in width extendinglaterally across the furnace. The plateM may at its forward end, at m,be hooked to the furnace-wall, and when it is desired to inspect thefines, or to get in above the arch G, the plate M may be raised, asindicated by the dotted lines in Fig. 2, or be removed. The flues F canthus be reached without removing the arch G. The forward end of the archmay be of such height as to enable the flues to be seen from the door Dupon raising or removing the.

plate M. WVhen the latteris in place the heatcurrents or smoke are keptfrom passing above the arch. At the same time, by reason of the modeherein shown of combining the plate and arch, any movement of eitherpart from the action of the heat of the furnace does not affeet orstrain the other part; i

I claim- 1. In a locomotive-furnace, a removable plate or tile, M,extending from the front a of the furnace to and having its forward edgeresting upon the arch, serving, when lowered, to close the space L,between the arch and furnace-front a, substantially as described, andfor the purposes set forth.

2. The combination of the furnace A, arch G, and plate M, said plateextendingand closing, as described, the space L, between thefurnace-front and arch, and the latter not extending to the farther endof the furnace, the throat K being arranged beyond said arch,substantially as described.

T. A. BUOKLAND.

Witnesses:

GHAs. D. MoonY, SAML. ST BOYD.

